.bull{
  //display: inline-block;
  width: 90%;
  margin: 0 auto;
  position: relative;
  height: 30px;
  //.whxy:nth-child(1){
  //  display: inline-block;
  //}
  //.whxy:nth-child(2){
  //  margin-left: 20px;
  //  display: inline-block;
  //}
  //.whxy{
  //  display: inline-block;
  //}
}
